A.﹣80dBm B.﹣90dBm C.﹣95dBm D.﹣100dBm
A.掉话总次数/接通总次数×100% B.掉话总次数/试呼叫总次数×100% C.接通总次数/掉话总次数×100% D.试呼叫总次数/掉话总次数×100%
A.≤1‰ B.≤1.5‰ C.≤2‰ D.≤2.5‰